BR9811812A - Valve control system of an internal combustion machine that can be connected as a drive or as a brake - Google Patents

Valve control system of an internal combustion machine that can be connected as a drive or as a brake

Info

Publication number
BR9811812A
BR9811812A BR9811812-9A BR9811812A BR9811812A BR 9811812 A BR9811812 A BR 9811812A BR 9811812 A BR9811812 A BR 9811812A BR 9811812 A BR9811812 A BR 9811812A
Authority
BR
Brazil
Prior art keywords
brake
control system
internal combustion
drive
valve control
Prior art date
Application number
BR9811812-9A
Other languages
Portuguese (pt)
Inventor
Volker Korte
Walter Krepulat
Martin Lechner
Christopher Steinmetz
Original Assignee
Mahle Ventiltrieb Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle Ventiltrieb Gmbh filed Critical Mahle Ventiltrieb Gmbh
Publication of BR9811812A publication Critical patent/BR9811812A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L13/0047—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction the movement of the valves resulting from the sum of the simultaneous actions of at least two cams, the cams being independently variable in phase in respect of each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Patente de Invenção:<B>"SISTEMA DE CONTROLE DE VáLVULA DE UMA MáQUINA DE COMBUSTãO INTERNA QUE PODE SER LIGADA COMO ACIONAMENTO OU COMO FREIO"<D>. A invenção refere-se a um sistema de controle de válvula de uma máquina de combustão interna que pode ser ligada como acionamento ou como freio, com um eixo de came do freio e um eixo de came principal que atuam ambos sobre válvulas de exaustão. A meta da invenção é adaptar a potência de freio do motor a diversas exigências. Para isso, com auxílio de uma engrenagem com deslocamento de fases, os dois eixos de came estão dispostos podendo deslocar as fases um em relação ao outro. Se for necessária somente uma potência de freio pequena, então a descompressão ocorre já antes do OT ou somente depois do OT, de tal forma que uma parte do trabalho de descompressão, no primeiro caso, não precisa ser executada, e no segundo caso, é recuperada por meio de expansão.Invention Patent: <B> "VALVE CONTROL SYSTEM OF AN INTERNAL COMBUSTION MACHINE THAT CAN BE CONNECTED AS A DRIVE OR A BRAKE" <D>. The invention relates to a valve control system of an internal combustion machine that can be connected as a drive or as a brake, with a brake cam shaft and a main cam shaft that both act on exhaust valves. The goal of the invention is to adapt the engine's brake power to different requirements. To do this, with the aid of a phase shift gear, the two cam axes are arranged and can shift the phases in relation to each other. If only a small amount of brake power is needed, then the decompression takes place either before the OT or only after the OT, in such a way that a part of the decompression work, in the first case, does not need to be carried out, and in the second case, it is recovered through expansion.

BR9811812-9A 1997-08-01 1998-07-06 Valve control system of an internal combustion machine that can be connected as a drive or as a brake BR9811812A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997133322 DE19733322A1 (en) 1997-08-01 1997-08-01 Valve control of an internal combustion engine that can be switched as a drive or brake
PCT/DE1998/001925 WO1999006678A1 (en) 1997-08-01 1998-07-06 Valve control system for an internal combustion engine which can be switcched into drive or brake mode

Publications (1)

Publication Number Publication Date
BR9811812A true BR9811812A (en) 2000-08-15

Family

ID=7837707

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811812-9A BR9811812A (en) 1997-08-01 1998-07-06 Valve control system of an internal combustion machine that can be connected as a drive or as a brake

Country Status (5)

Country Link
EP (1) EP1000226A1 (en)
JP (1) JP2001512206A (en)
BR (1) BR9811812A (en)
DE (1) DE19733322A1 (en)
WO (1) WO1999006678A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116143A1 (en) * 2001-03-30 2002-10-10 Man Nutzfahrzeuge Ag Brake for internal combustion engine has second camshaft with brake cam for each cylinder
DE10116300A1 (en) 2001-03-31 2002-10-02 Mahle Ventiltrieb Gmbh Device for actuating the gas exchange valves of an internal combustion engine and method for handling this device
CN1839250B (en) 2004-07-17 2011-01-05 玛勒阀门有限公司 Controller for valve especially internal combustion engine gas exchanging valve
DE102006002145A1 (en) * 2006-01-17 2007-07-19 Daimlerchrysler Ag Gas exchange valve actuating device
DE102007007758A1 (en) * 2007-02-16 2008-08-21 Mahle International Gmbh Valve drive of a reciprocating internal combustion engine
DE102007038078A1 (en) * 2007-08-11 2009-02-12 Daimler Ag Gas exchange valve actuating device
DE102017201343A1 (en) 2017-01-27 2018-08-02 Mahle International Gmbh Valve gear for a reciprocating internal combustion engine and method for valve control in a reciprocating internal combustion engine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR706233A (en) * 1930-02-15 1931-06-20 Valve control device
US2907311A (en) * 1957-09-04 1959-10-06 Waldron Frederic Barnes Valve operating mechanism of reciprocating internal combustion engines
DE2832526A1 (en) * 1978-07-25 1980-02-07 Maschf Augsburg Nuernberg Ag Four-stroke IC engine with exhaust gas braking - has stops preventing full exhaust valve closure when brake flap valve is operated
DE3509094A1 (en) * 1984-04-06 1985-10-17 Volkswagenwerk Ag, 3180 Wolfsburg Device for the infinitely variable adjustment of the valve timings of exhaust and refill valves
EP0202682A3 (en) 1985-05-22 1988-03-02 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Device for the relative angle modification of a drive shaft, especially of the crankshaft of an internal-combustion engine, more especially for valves
DE3624827A1 (en) * 1986-07-23 1988-02-04 Sueddeutsche Kolbenbolzenfabri ADJUSTMENT FOR A CAMSHAFT FOR CONTROLLING THE GAS INLET AND EXHAUST VALVES OF COMBUSTION ENGINES
DE3933943A1 (en) * 1988-10-28 1990-05-03 Volkswagen Ag Vehicle engine valve mechanism - includes three camshaft belt tensioning rollers, lower two hydraulically controlled and connected by springs to upper roller
SE466320B (en) 1989-02-15 1992-01-27 Volvo Ab PROCEDURES AND DEVICE FOR ENGINE BRAKING WITH A FIREWORKS ENGINE
GB8910105D0 (en) 1989-05-03 1989-06-21 Jaguar Cars Camshaft drive mechanisms
DE4441946A1 (en) * 1994-11-25 1996-05-30 Hansbernd Berzheim Arbitrary large stageless phase displacement device for piston engine camshaft
DE19515496A1 (en) * 1995-04-27 1995-10-05 Steffen Kirsch Radially sliding camshaft for IC engine
JP3360533B2 (en) * 1996-07-10 2002-12-24 三菱自動車エンジニアリング株式会社 Engine valve train

Also Published As

Publication number Publication date
WO1999006678A1 (en) 1999-02-11
DE19733322A1 (en) 1999-02-04
EP1000226A1 (en) 2000-05-17
JP2001512206A (en) 2001-08-21

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Legal Events

Date Code Title Description
FF Decision: intention to grant
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time